1.

The numbers of children in 10 families of a locality are: 2 , 4 , 3 , 4 , 2 , 3 , 5 , 1 , 1 , 5. Find the number of children per family.

Answer»

The numbers of children in 10 families: 2 , 4 , 3 , 4 , 2 , 3 , 5 , 1 , 1 , 5 

Total number of children = 2 + 4 + 3 + 4 + 2 + 3 + 5 + 1 + 1 + 5 

= 30 

Total Families = 10 

Number of children per family = Mean = (Total number of children) / (Total Families) 

\(\frac{30}{10}\)

= 3 

Therefore, Number of children per family is 3.



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